Method and device for reporting channel state in wireless communication system

A technology of wireless communication system and channel state information, applied in wireless communication, separation device of transmission path, transmission system, etc., can solve problems such as increase in density of accessible nodes

Active Publication Date: 2020-10-16
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Furthermore, the communication environment has evolved such that the density of accessible nodes in the vicinity of the user equipment (UE) increases

Method used

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  • Method and device for reporting channel state in wireless communication system
  • Method and device for reporting channel state in wireless communication system
  • Method and device for reporting channel state in wireless communication system

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Embodiment Construction

[0042] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. The drawings illustrate exemplary embodiments of the invention and provide a more detailed description of the invention. However, the scope of the present invention should not be limited thereto.

[0043] In some cases, structures and devices of known art will be omitted or will be shown in block diagram form based on main functions of the respective structures and devices in order to prevent the concept of the present invention from being obscured. Also, wherever possible, the same reference numbers will be used throughout the drawings and the specification to refer to the same or like parts.

[0044] In the present invention, User Equipment (UE) is fixed or mobile. A UE is a device that transmits and receives user data and / or control information by communicating with a base station (BS). The term "UE" may be used with "...

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Abstract

A method for reporting an aperiodic channel state in a wireless communication system according to an embodiment of the present invention, the method is implemented by a terminal and includes: a step of receiving an aperiodic channel state information (CSI) report request from a base station; and A step of calculating aperiodic CSI corresponding to the aperiodic CSI report request and sending the calculated aperiodic CSI to the base station through an uplink shared channel, wherein if the component carrier for the terminal or the number of CSI processes exceeds a specific value, then the uplink control information including only the aperiodic CSI may be sent through the uplink shared channel under a specific condition.

Description

technical field [0001] The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for reporting a channel state in a wireless communication system. Background technique [0002] Recently, various devices such as smartphones, tablet personal computers (PCs) that require machine-to-machine (M2M) communication and high data transfer rates have appeared and started to be widely used. This has rapidly increased the amount of data that needs to be processed on cellular networks. To meet such rapidly increasing data throughput, recently, carrier aggregation (CA) technology that efficiently uses more frequency bands, cognitive radio technology, multi-antenna (MIMO) for increasing data capacity within a limited frequency have been highlighted technology, multi-base station cooperation technology, etc. Furthermore, communication environments have evolved such that there is an increased density of accessible nodes in the vicinit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L5/00H04W24/10
CPCH04L1/0026H04L5/0057H04W24/10H04L1/00H04L5/00H04L1/0027H04L1/0693H04L5/0053H04W72/23H04L5/001
Inventor 李贤镐梁锡喆李承旻金沂濬
Owner LG ELECTRONICS INC
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